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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Air Conditioner Service Manual
TABLE OF CONTENTS
LG Model Name
...............................................................................................................................................
3
Safety Precautions
..........................................................................................................................................
5
Dimensions
....................................................................................................................................................
10
Symbols Used in this Manual ...................................................................................................................10
Indoor Unit................................................................................................................................................10
Product Specifications
................................................................................................................................
12
Installation
.....................................................................................................................................................
13
Selection of the Best Location..................................................................................................................13
Piping Length and Elevation.....................................................................................................................13
How to Fix Installation Plate .....................................................................................................................14
Drill a Hole in the Wall ..............................................................................................................................14
Drain hose junction...................................................................................................................................14
Flaring work and connection of piping
.......................................................................................................
15
Flaring work..............................................................................................................................................15
Connection of piping -- Indoor ..................................................................................................................15
Connection of the pipes-Outdoor .............................................................................................................19
Connecting the cable between indoor unit and outdoor unit
...................................................................
20
Connect the cable to the Indoor unit. .......................................................................................................20
Connect the cable to the outdoor unit ......................................................................................................21
Checking the drainage and forming the pipings
........................................................................................
22
Checking the drainage .............................................................................................................................22
Form the piping ........................................................................................................................................22
AIR PURGING
................................................................................................................................................
23
Air purging ................................................................................................................................................23
Air purging with vacuum pump .................................................................................................................23
TEST RUNNING
.............................................................................................................................................
25
Operation
.......................................................................................................................................................
26
Function of Controls .................................................................................................................................26
Display Function ......................................................................................................................................30
Self-diagnosis Function ............................................................................................................................30
Remote Control Operations......................................................................................................................31
Disassembly
..................................................................................................................................................
32
Indoor Unit................................................................................................................................................32
Schematic Diagram
.......................................................................................................................................
35
Electric Control Device .............................................................................................................................35
Wiring Diagram.........................................................................................................................................36
Components Location ..............................................................................................................................37
Troubleshooting Guide
.................................................................................................................................
39
Refrigeration Cycle Diagram ....................................................................................................................39
2-way, 3-way Valve .................................................................................................................................40
Cycle Parts ...............................................................................................................................................46
Electronic Parts ........................................................................................................................................47
Exploded View
...............................................................................................................................................
54
Содержание AS-H246DGM0
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